-- FUNCTIONS
function signal()
    rs.setOutput("back",true)
    sleep(1)
    rs.setOutput("back",false)
end

function checkWater()
  rednet.open('bottom')
  rednet.broadcast('check_water')
  id, result = rednet.receive()
  rednet.close()
  return result
end

function slitVodu()
   if checkWater() then
      signal()
      print('Voda slita')
   else
      print('Voda uzhe slita')
   end
end

function haletVodu()
   if checkWater() then
      print('Bada yga haleta')
   else
      signal()
      print('haleBaey')
   end
end

-- PROGRAM
while true do
    print ("Dobro pozhalovat")
    print ("1 - slit' vodu ")
    print ("2 - napolnit' vodoy ")

    text = read()
    if text == '1' then
        slitVodu()
    elseif text == '2' then
        haletVodu()
    else
        print('Nepravilnaya komanda')
    end
end